Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ce42ea27e933b4d…

MALICIOUS

PDF

34.3 KB Created: 2021-07-01 15:36:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b551ecf70e11fbf4233f279e69ff2312 SHA-1: ddb87cda39625984d65600cb75a79bdbf2791815 SHA-256: 0ce42ea27e933b4d815ddde2d1ac87e2a6677dec8c501e4d6b9dbb3737ad51e7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as 'free generators' or 'game hacks' for popular games like Roblox. The document body and embedded URLs strongly suggest a phishing or scam attempt to redirect users to potentially harmful websites. No scripts were extracted, but the presence of malicious links indicates a high likelihood of a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/roblox-free-face-2021-game-hack In PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-free-robux-easy-steps_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-robux-generator-2021-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/get-free-robux-on-roblox-app_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-dominus-roblox-not-a-model_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/all-minecraft-handbooks_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-free-skin-hack_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-spin-app-coin-master_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-cbro-hack-the-golden-box_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-pro-hack-script_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/hack-skin-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-master-level-4_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/pokemon-go-free-promo-codes-2021_GM1094591345.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/hacks-for-trading-pet-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/hackear-coin-master-android_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/youtuberobux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/getbux-win-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3018 21996 bytes
SHA-256: 5fd1c290738c9813c92840ed5970c6aa4ed44256f1ead669289cc43874571bb6
font_01_sfnt_off000060db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DB 19052 bytes
SHA-256: ab4f3fe3bdc00bd10bc90902ba165b96580a2b140daf729874dbb017f6e0d3c6

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